//#include <QLabel>
//#include <QPushButton>
//#include <QLineEdit>
//#include <QCheckBox>
//#include <QHBoxLayout>
//#include <QVBoxLayout>
//#include <QGridLayout>
#include <QtWidgets>
#include "finddialog.h"

FindDialog::FindDialog(QWidget *parent)
    :QDialog(parent)
{
    label = new QLabel(tr("Find &what:"));
    lineEdit =new QLineEdit();
    label->setBuddy(lineEdit);

    caseCheckBox = new QCheckBox(tr("Match &case"));
    backwardCheckBox = new QCheckBox(tr("Search &backward"));

    findButton = new QPushButton(tr("&Find"));
    findButton->setDefault(true);
    findButton->setEnabled(false);

    closeButton = new QPushButton(tr("Close"));

    connect(lineEdit,SIGNAL(textChanged(const QString&)),this,SLOT(enableFindButton(QString)));
    connect(findButton,SIGNAL(clicked()),this,SLOT(FindClicked()));
    connect(closeButton,SIGNAL(clicked()),this,SLOT(close()));

    QHBoxLayout *topLeftLayout = new QHBoxLayout;
    topLeftLayout->addWidget(label);
    topLeftLayout->addWidget(lineEdit);

    QVBoxLayout *leftLayout = new QVBoxLayout;
    leftLayout->addLayout(topLeftLayout);
    leftLayout->addWidget(caseCheckBox);
    leftLayout->addWidget(backwardCheckBox);

    QVBoxLayout *rightLayout = new QVBoxLayout;
    rightLayout->addWidget(findButton);
    rightLayout->addWidget(closeButton);
    rightLayout->addStretch();

    QHBoxLayout *mainLayout = new QHBoxLayout;
    mainLayout->addLayout(leftLayout);
    mainLayout->addLayout(rightLayout);
    setLayout(mainLayout);

    setWindowTitle(tr("Find"));
    setFixedHeight(sizeHint().height());

}

void FindDialog::FindClicked()
{
    QString text = lineEdit->text();
    Qt::CaseSensitivity cs = caseCheckBox->isChecked()?
                Qt::CaseSensitive:Qt::CaseInsensitive;
    if (backwardCheckBox->isChecked()){
        emit FindPrevious(text,cs);
    }else{
        emit FindNext(text,cs);
    }
}

void FindDialog::enableFindButton(const QString &text)
{
    findButton->setEnabled(!text.isEmpty());
}
